Die-carrier for stamping or embossing machines.



No. 694,I27. A Patented Feb. 25, |902.

Y v A. G. BREWER.

DlECABB-ER EUR STAMPING -lv EMBOSSING MACHINES.

(Application med June 22, 1901.

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UNirED STATES PATENT @Errcn@ ALBERT G. BREWER, OF IAIOPKINTON, MASSACHUSETTS.

DIE-CARRIER FOR STAlVlPlNG OR EMBOSSING MACHlNES.

SPECIFICATION forming part of Letters Patent No. 694,127, dated February 25, 1902.

Application filed .Tune Z2, 1901. Serial No. 65,603. (No model.) i

To if/ZZ whom. it may concern:

Be it known that I, ALBERT G. BREWER, of Hopkinton, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Die- Carriers for Stamping` or Embossing Machines, of which the following is a specification.

This invention relates to machines for stamping or embossing names,trademarks, dsc., upon sole-leather or other analogous material, and particularly upon the bottoms of boot and shoe soles or heels.

The invention has for its object to provide a die-carrier in which the acting face of the stamping or embossing die shall be yieldingly supported and free to tip in various directions when it first comes to a bearing on the surface to be stamped, so that the face of the die can adjust itself to and come to a uniform bearing on said surface before it is positively or rigidly supported to indent the same.

The invention also has for its object to provide means whereby the lateral displacement of the acting face of the die caused by its tipping movementshallbe reduced to the minimum, so that the displacement of the material engaged by the die caused by the adjustment of the die to said surface shall also be reduced to a minimum.

The invention consists in the improvements which I will now proceed-to describe and claim.

Of the accompanying drawings, forming a part of this specication, Figure 1 represents a side elevation of a portion of a stamping- Vmachine provided with a die holder or carrier embodying my invention. Fig. 2 represents a section on line 2 2 of Fig. l. Fig. 3 represents a section on line 3 3 of Fig, 2.

The same letters of reference indicate the same parts in all of the iigures.

In the drawings, 4. represents a support for the die holder and carrier, hereinafter described, and 5 represents a support for aboot or shoe the sole of which is to be stamped, the support 5 being mounted on a cross-head 6, which is movable toward and from the cross-head Li. In the present embodiment of my. invention the support 4. is a rigid crosshead forming a part of an organized press, While the support 5 is a jack or foot formed to enter the upper-'and bear upon the inner sole of a boot or shoe, said support 5 being movable toward and from the support 4 by the cross-head 6.

In my application for Letters Patent of the United States for improvement in presses filed December 13, 1900, Serial No. 39,728, I show an organized machine having a lixed cross-head corresponding to the cross-head or support 4, and a movable cross-head corre,-r spcnding to the cross-head G,and power mechanism controlled by the operator for moving the cross-head 6 toward and from the crosshead 4, thus pressing the article to be operated upon toward and from the operating member carried by the support el and then withdrawing the said article, thesaid machine being organized to either cause immediate withdrawal of the said article from the device which acts uponit or retaining it in contact therewith as long as the operator may desire.

The die holder or carrier hereinafter described may for the purpose of this description be considered a part of the press described in my above-mentioned application, although I do not limit myself to the employment of the present invention in connection with said press, as my improved die holder or carrier may be used in connection with any suitable machine organized to bring together and separate the die and the article on which it acts.

My improved'die-holder comprises a base member 7, adapted for connection with the support 4, and a dievholding member 8, adapted for engagement with a die 9. member 7 is provided with a pressure-imparting face lO, and the die-holding member S is provided with a corresponding pressure-receiving face ll. The members 7 and 8 are connected vby yielding exible connections, whereby the faces lO and 11 are normally held separated and whereby the die-holding member S is adapted to tip in various directions while said faces are separated, so that the acting face 12 of the die, which is provided with a suitable design to be embossed upon a boot or shoe sole orother article, is adapted to tip in any direction required to bring the said acting face to a uniform bearing on the sole before the face 1l comes to a rigid bear- The base IOO ing on the face 10. In the present embodiment of my invention the said yielding liexible connections are constructed and organized as follows:

13 13 are ears formed on a hub or collar 14, which is rigidly secured by a set-screw 15 to the base member 7, said ears projecting in opposite directions from the base member.

16 16 represent guide-rods rigidly afxed to the ears 13 13 and extending downwardly below the base member 7. The lower ends of the guide-rods 16 are provided with seats or stops 17 17.

18 18 represent arms formed on or rigidly attached to the die-holding member 8, said arms projecting downwardly from the body portion of the die-holding member and having their outer ends bent outwardly and formed to bear on the seats 17, said outwardly-extending portions of the arms 18 being provided with orifices 19, which are of larger diameter than the guide-rods 16, the latter passing loosely through the orifices 19.

2O 20 represent helical springs interposed between the ears 13 on the base member and the arms 18 on the die-holding member, said springs holdingthe arms 18 yieldingly against the seats 17. The arrangement of the parts is such that when the arms 18 bear upon the seats 17 the faces 10 and 11 of the base and die-holding members are separated from each other, as shown in Figs. 2 and 3.

When a boot or shoe sole is pressed upwardly against the acting face of the die 9, the die and its holder yield until the face 11 comes to a bearing on the face 10 of the base member. While the die is thus yielding, the holding member is free to tip in any direction required to cause the acting face of the die to adj ust itself to the surface of the sole. For example, the die-holding member and die may have a tipping movement such as would be caused by the elevation of one of the arms 18 from the accompanying seat 17, the other arm 18 remaining in contact with its seat, or the die-holding member and the die may have a tipping movement such as would be caused by lateral oscillations of both arms 18 while they are in contact with their seats 17, the diameter of the orices 19 in said arm being such as to permit the described movements of the arms relatively to the seats 17 and guide-rods 16. 1t will be seen, therefore, that kby the time the die-holding member comes to a rigid bearing on the base member the acting face of the die will accurately adjust itself to the surface of the sole and is therefore prepared to properly indent the sole by continued upward pressure of the sole against the die while the die is rigidly supported by the contact of the faces 10 and 11.

It will be seen by reference to Fig. 2 that the seats -17 are located in approximately the plane of the acting face of the die 9, said seats being elevated above said plane only to the extent required to prevent contact between the seats 17 and the surface of the sole.

This arrangement reduces to the minimum the lateral or edgewise displacement of the acting face of the die caused by its tipping movements, so that the engagement of the raised characters of the die with the sole does not have any tendency to injuriously crowd or displace the material of the sole laterally, such as would be the case if the tipping movemeut of the die were from a point or axis elevated considerably above its acting face.

It will be seen that the described provisions for flexibly supporting the die while it is adjusting itself to the surface of the sole compensates for any unevenness of the said surface caused by unevenness of the filling between the inner andA outer members of the sole or, in other words, between the outer sole proper and the inner sole.

The base member 7 is here shown as provided With a shank 21, which is inserted in a socket 22, affixed to or formed on the support 4, and is secured in said socket by a setscrew 23. The die-holding member 8 is provided with asocket 24, which receives a shank 25 on the die 9, the said shank being secured in the socket by a set-screw 26.

My invention is notlimited to the details of construction here shown. Any suitable flexible connections may be employed between the base member 7 and die-holding member 8 which will normally hold the faces 10 and 11 of said members separated and will permit the acting-face of the die to tip before it is rigidly supported.

I claim- ICO l. A die-carrier comprising a base member v having a pressure-imparting face, a diehold ing member having a pressu re-receivin g face, a die secured to said holding member, and yielding iiexible connections between said members, whereby the said faces are normally separated and permitted to meet, the iiexibility of said connections permitting the acting face of the die to adjust itself to the surface to be stamped before the said faces meet. j

2.' A die-carrier comprising a base member having a pressure-imparting face, a die-holding member having a pressure-receiving face, a die secured to said holding member, and connections,y between said members having provisions for yieldingly separating saidfaces, and for permitting independent tipping movements of the die, whereby the die is permitted both to yield and tip when pressed against a surface to be stamped.

3. A die-carrier comprising a base member having a pressure-imparting face, a die-holding member having a pressure-receiving face, a die secured to said holding member, and connections between said members having provisions for yieldingly separating said faces, and for permitting independent tipping movements of the die whereby the die is permitted both to yield and tip when pressed against a surface to be stamped, said connections including abutments or seats rig- IIO idly secured to the base member and arms rigidly secured to the die-holding memberand normally held in yielding Contact with said seats, the said seats being located approximately in the plane of the acting face of the die, whereby the lateral displacement of said acting face caused by the tipping movements of the die is reduced to the minimum.

4. A die-carrier comprising lirst, a base member having a pressure-imparting face, means for attachment to a support and rigid parallel guides projecting belowpsaid face, said arms being provided With abutments or seats at their lower portions, secondly, a dieholding member having a pressure-receiving 15 the arms being adapted to separate from the zo seats and to rock or tip thereon. Y

In testimony whereof I have affixed my signature in presence of two Witnesses.

ALBERT Gr. BRE WER.

Witnesses:

C. E. WHEELER, A. C. CoMEY. 

